Theory is based on practice and ________ serves practice.
| A．in turn | B．by and by |
| C．by chance | D．in this case |
相关知识点
推荐试卷
Theory is based on practice and ________ serves practice.
| A．in turn | B．by and by |
| C．by chance | D．in this case |
试题篮
()
粤公网安备 44130202000953号
